Spinning, doubling, and twisting machine.



S. Z. DE FERRANTI. SPINNING, DOUBLING, AND TWISTING MACHINE APPLICATIONFILED APR. 24, 1909. I

Patented Mar. 14, 1911.

2 SHEETS-SHEET 1.

15/775577 firm/rm SfMSW/A/ZM 6%?44 0 m (Ma/M AT/VE.

THE NORRIS FETER5 co, WASHINGTON, n. c.

S. Z. D EFERRANTI. SPINNING, DOUBLING, AND TWISTING 11111111113.

APPLIOATIOK FILED APR. 24, 1909.

Patented Mar. 14,1911.

Fig.7.

THE mmms PETERS ca wAsnmctum'n. c4

SEBASTIAN ZIANI DE FERRANTI, OF GRINDLEFORD, NEAR SHEFFIELD, ENGLAND.

SPINNING, DOUBLING, AND TWIS'IING MACHINE.

Specification of Letters Patent.

Patented Mar. 14, 1911.

Original application filed. May 12, 1905, Serial No. 260,120. Dividedand this application filed April 24,

To all whom it may concern:

Be it known that I, SEBASTIAN ZIANI on FERRANTI, a subject of the Kingof Great Britain and Ireland, and residing at Grindleford, nearShetlield, in the county of Derby, England, have invented certain newand useful Improvements in and Relating to Spinning, Doubling, andTwisting Machines, of which the following is a specification.

The invention relates to machines for spinning, doubling twisting andthe like (operations referred to generically hereinafter as twisting)and in particular to the transfer rolls used in such machines whetherfor feeding material to, or drawing off material from, the meansprovided for imparting twist thereto, such means as is well known takingdifferent forms 6. g. spindle, cup ring flier or otherwise to suit therequirements of the particular design.

For simplicity in the following specification and claims, I shall attimes refer to the material under treatment as thread.

I shall now describe by way of example a specific form of my inventionand subsequently point out the features of novelty which I desire toprotect in the claims.

Referring to the accompanying drawings Figure 1 shows a general view ofthe improved transfer rolls applied to a spinning device having aleading and a lagging part. Fig. l being a corresponding part plan of adetail of the ring flier showing the thread engaging hook. Fig. 2 showsan elevation of one side of the rolls on an enlarged scale. Fig. 3 beingan elevation of the other side of the rolls. Fig. 1 shows acorresponding end elevation. Fig. 5 shows a sectional plan, the plane ofthe section passing through the axis of the lower roll. Fig. 6 shows aplan view of the upper rolls, partly in section, while Figs. 7 and 7show a detail view of a device for defining the position of one of thefriction gear Wheels.

The drawings are to a certain extent of a diagrammatic nature whilewhere desirable the same reference symbols are used to denote similarparts in the different figures.

Referring now to Fig. 1 the thread is fed from the feed rolls to thehook 6 in the ring flier c and so to the bobbin h on which it is wound,the ring flier thus forming the leading part and the spindle f on whichthe bobbin is mounted the lagging part. As re- Serial No. 491,896.

gards the leading part or ring flier c a mounting is provided for thesame which consists in a sleeve 6 truly turned and having a totalclearance of the order of three ten-thousandths of an inch so that thefilm of air between the surfaces of the ring flier c and the sleeve 5acts as the lubricant. The sleeve 6 is in turn mounted in a socket orthe like 0 fitting into any convenient fixed part of the frame work ofthe machine, rubber rings 6 being inserted between the sleeve Z2 and thesocket 6 A turbine c is mounted on the upper part of the ring flier andis supplied with working fluid by way of the passage 0 formed in thesocket part 0 A ring a fits over the turbine and thus acts as a shieldto prevent or minimize the fanning action of the blades, certain partsof the shield being cut away as indicated on the left hand side of Fig.1 to allow the exhaust from the turbine to escape and to impinge uponthe outwardly turned flange of the ring flier itself. The exhaust gasesthus to a certain extent counteract the dead weight of the ring flier.As regards the lagging part in the example shown this consists of aspindle s on which the bobbin h is mounted and having an enlarged part cwhich fits accurately in a stationary part 6 so as to form an airbearing as before. The lower part of the spindle is carried in afootstep e mounted on a rail 6 which is given a reciprocating motion byany of the well known mechanism for the purpose, such transverse motionforming no part of the present invention.

A turbine at is shown mounted on the enlarged part 6 of the spindle, theobject of this turbine being to reduce the tension on the thread so thatvery fine counts may be spun. On the lower part of the spindle a gearwheel 2' is provided meshing with a second wheel 70 the spindle n ofwhich transmits the motion of the lagging part to the rolls. Motion istransmitted to the first lower draw roll 31 by means of a friction disk32 gearing with small friction wheels 33 and 34 splined on the shaft n.The small friction wheels 33 and 34 may be rigidly mounted on thestriking levers 35 and 36 which are used for actuating the wheels 33 and34 so that their position, with respect to the center of the frictiondisk 32, may be varied or they may be completely removed from contacttherewith as desired. It

should be understoodthat whenone of the small friction wheels say, 33'is in contact with the disk 32 the other wheel 34 is removed fromcontact therewith, so that assuming the spindle n to rotate constantlyin theonedirection, the direction ofthe disk 7 i 32 .wheir in contactwith the wheel 33 is conv tershaft-37 is mounted on bearings 41 and 42,the'bearing 42 having a spring connection 43 in orderft'o insurethatjthe necessary frictional contact is maintained between the,variablegears 40. The roll 39 is geared to the roll 44'by spur gearing45 through an i idle wheel 46. The upper rolls are all carried byswingarms '52 rotatable about a com- 'mon" axis 47 as seen in Fig. 6, one ofthe objects of this form ofmountingbeing to facilitate the insertion ofthe material.

U Figs. 7 and 7 a show a detail of a device by which the small frictionwheels used may be splined on toa shaft as described and at the sametime have their position longitudinally of the shaft defined in a numberof predetermined positions. A 0 spring (see Figs. 7' and 7f) is rigidlyattached to the smallfriction wheel and slides in a slot 49 cut parallelto thelongitudinal axis of the shaft. On the bottom of the springtheprojec'tion is situated which is adapted to engage withteeth 51 formedin the bottom of the slots 49. It will be obvious that the C spring 48will cause the small friction wheel to be retained injposition on theshaft with a suflicient force, while at the same time the pressurebetween the rolls, I provide weights of lead or other suitable material7 which I dispose on the upper rolls in any not preventing it from beingmoved with relation thereto by the striking lever, or the like. 7

'In cases where it is desirable to increase convenient manner. Thusreferring particularly to Figs. 2 and 6 the pivoted swing arms 52 eachcarry a bridge piece 53, the

ends-of which remotevfrom the swing arm, are turned down and slotted soas to fit over checks (see Fig. 6) in the axial portion of the rolls 54corresponding slots being providedin the arms themselves. On two of 7these bridge pieces, weights 55 are fixed while on the third a hanger 56is arranged to carry a suitable weight at its extremity.

It will be seen that with my improved arrangement of transfer rolls, theamount of "draw may be varied by adjusting the position of the frictionwheel 40, while the degree of twist i. e. the number of twists per unitlength imparted to the material may be independently varied by adjustingthe posi tion of the wheels 33 and 34 as the case may be,l both. theseadjustments being possible while the machine is running. 'Moreover itwill "be evident that by turning back two of the upperrolls'54'thedrawing rolls are rendered inoperative while at the same time thedirection ofrotation of the rolls 31 and 54 may be reversed so that whenrequired they may act as draw ofi rolls instead of feed rolls.

I-Iaving now described my invention what I claim aslnew anddsire tosecure by ,Letters Patent is i y lwIn combination in a twisting machinea rotatable twisting'element, a plurality of rolls actuatedby saidelement, a second plurality of rolls co-acting therewith, together withaplurality of independently movable members upon each of' which oneofsaid secondnentioned rolls is overhung.

2. In combination in a twistin machine a rotatable twisting element, apl urality of rolls actuated by said element, a second plurality ofrolls co-actingtherewith, together with a plurality of co-axi'allymounted independently movable members, upon each of which one of saidsecond mentioned rolls is overhung. I

3. In combination-in a twisting machine a rotatable twisting element, aplurality of rolls actuated by said element, means for altering the drawof the material during running of the machine, together with means foralteringthe twist during the running of the machine. I

4. In-combination, in atwisting machine, a rotatable twisting element; athread-transfer roll driven therefrom; a second threadtransfer rollgeared to said first-mentioned roll, means for changing the velocityratio between said twisting element and said first-mentioned roll, andother means for changing the velocity ratio between said first andsecond-mentioned rolls, both said means being operable during running ofthe machine. r

5. In combination in a twisting machine, a plurality of draw rolls; afriction disk mounted on one of said rolls and a gear mounted on anotherof said rolls; a shaft running substantially parallel to said disk andcarrying at one end a friction wheel in operative engagement with saiddisk and at the other end a gear engaging with said first-mentionedgear.

6. In combination in a twisting machine, a rotatable twisting element; aplurality of pairs of thread-transferring rolls and a driving connectionbetween said element and said pairs of rolls, said driving connectionincluding a reversing gear together with movable means for separatingthe individual rolls of certain of said pairs to render the sameinoperative.

7. In combination in a twisting machine, a rotatable twisting element, amotor mounted thereon; a plurality of airs of thread-transferring rollsand a driving connection between said element and said pairs of rolls,said driving connection including a reversing gear together with movablemeans for separating the individual rolls of certain pairs to render thesame inoperative.

8. In combination in a twisting machine a rotatable twisting element,thread-transfer rolls driven by said element, friction gearing foraltering the velocity ratio of said twisting element and said transferrolls, together with means co-axial with one of the members of saidfriction gear for actuating certain of said rolls at a speed whichdiifers from that of the friction gearing.

In testimony whereof I afiix my signature in presence of two witnesses.

SEBASTIAN ZIANL DE FERRANTI. Witnesses:

ALBERT HALL, WILLIAM DUNCAN DAVIDSON.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

